Question

9(x+1)(x-3)=??

Answer 1

=\(9\left(x^2-2x-3\right)\)

=\(9x^2-18x-27\)

 

Answer 2

\(=\left(9x+9\right)\left(x-3\right)\)

\(=9x^2-18x-27\)

Answer 3

\(9\left(x+1\right)\left(x-3\right)\)

\(=\left(9x+9\right)\left(x-3\right)\)

\(=9x^2-27x+9x-27\)

\(=9x^2-18x-27\)